"Fortress nights" after the 5.4 version of the update, many maps in the game has changed. Added a new, such as abandoned warehouse after transforming abandoned hotel, this includes a new parking lot, logo, rest area, etc. If you thoroughly abandoned warehouses, you will find that in addition to the warehouses and factories, turned into a museum here. Historical events that took place there were on display at the museum, you can now travel to watch museum, abandoned warehouse can also enjoy a drink in the abandoned restaurant.